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Abstract

The objective of this study was the validation of the Radiellodiffusive sampler for ozone according to he CEN proposal norm in order to implement it as an indicative technique of measurement. The parameters to be evaluated according to the CEN requirements for the validation of diffusive samplers were found to be in conformity: blank value, desorption efficiency, back diffusion, storage after exposure (storage), storage before exposure (shelf life), sampler integrity (leak test) and expanded uncertainty under laboratory conditions (25%). Laboratory experiments showed that nominal sampling rate determined in laboratory at 120 AW_2600g/m3, 23 degrees Celcius, 50% or relative humidity, 2 m/s, during 8 hours is 25.3 cm3/min.

The expanded uncertainty under field conditions is 36% for low ozone concentration. For concentration around the European Directive limit, this uncertainty is about 30%. This uncertainty shows the suitability of the ozone Radiello sampler for use as an indicative technique, since the European data quality objective (accuracy < 30%) is respected..

Additional information

Authors: DE SAEGER E, European Commission, Joint Research Centre, Environment Institute, European Reference Laboratory of Air Pollution, Ispra (IT);AMANTINI L, European Commission, Joint Research Centre, Environment Institute, European Reference Laboratory of Air Pollution, Ispra (IT);GERBOLES M, European Commission, Joint Research Centre, Environment Institute, European Reference Laboratory of Air Pollution, Ispra (IT);DETIMMERMAN F, European Commission, Joint Research Centre, Environment Institute, European Reference Laboratory of Air Pollution, Ispra (IT)
Bibliographic Reference: EUR 19594 EN (2000) 54 pp.
Availability: Available free of charge from Documentation Service JRC Ispra
Record Number: 200012232 / Last updated on: 2001-06-12
Category: PUBLICATION
Original language: en
Available languages: en
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